Bob Bruninga, WB4APR, led a group of radio amateurs earlier this month to Mammoth Cave -- the world’s longest known cave system -- at Mammoth Cave National Park in Kentucky to test how APRS can be used as a means to extend radio communications underground Learn More

WX4NHC, the Amateur Radio station at the National Hurricane Center conducted its annual On-The-Air Station Test on Saturday, May 30, 2009. According to Assistant WX4NHC Coordinator Julio Ripoll, WD4R, the station conducted the test to promote awareness of Learn More